/*
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 *
 * Copyright @2008 the original author or authors.
 */
package com.bluestone.action;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.ResourceBundle;
import java.util.StringTokenizer;

import com.bluestone.BaseAction;
import com.bluestone.context.IContext;
import com.bluestone.scripts.ActionScript;
import com.bluestone.util.Util;

/**
 * @author <a href="mailto:bluesotne.master@gmail.com">daniel.q</a>
 *
 */
public class RandomParaAction extends BaseAction {

	/**
	 * @param type
	 */
	public RandomParaAction(ActionScript action) {
		super(action);
		// TODO Auto-generated constructor stub
	}
	
	public boolean execute(IContext context){
		if (!super.execute(context)){
			return false;
		}
		String target = action.getPara("target");
		if(target==null || target.length()==0){
			return false;
		}
		ArrayList ids = new ArrayList();
		String data = Util.loadFile(Util.getString(target));
		StringTokenizer tokens = new StringTokenizer(data,"\r\n");
		while(tokens.hasMoreTokens()){
			ids.add(tokens.nextToken());
		}
		int j = (int) (Math.random()* (ids.size()-1));
		String id = (String)ids.get(j);		
		String paraname = Util.getString(action.getPara("value"));
		Util.putDynamicPara(paraname, id);
		Util.getLogger().info("put dynamic para: "+paraname+"="+id);
		  
		return true;
	}

}
